CVE-2026-123615
imgproxy before 4.0.17 Out-of-Bounds Write in ICO Loader
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
imgproxy 3.3.0 before 4.0.17 contains an out-of-bounds heap read and write in the ICO loader's BMP header reconstruction (vips_foreign_load_ico_header in vips/icoload.c) when an ICO entry declares a tiny data size, causing unvalidated header fields to be read and written past the allocated buffer. Unauthenticated remote attackers can supply a crafted ICO image to corrupt adjacent heap chunk metadata, triggering a glibc abort that crashes the worker.
| CWE | CWE-787 |
| Vendor | imgproxy |
| Product | imgproxy |
| Published | Nov 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
imgproxy / imgproxy
3.3.0 < 4.0.17
References
Credits
🔍 haileyok